From: Daniel Vetter Date: Tue, 25 Oct 2011 22:53:57 +0000 (+0200) Subject: drm: ditch strange DRIVER_DMA_QUEUE only error bail-out X-Git-Tag: Ubuntu-5.0.0-8.9~15565^2~15 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=4c373790a4d4d667d1ab38b1fe2bbf6a8322e93b;p=mirror_ubuntu-disco-kernel.git drm: ditch strange DRIVER_DMA_QUEUE only error bail-out Only one driver (i810) even sets that flag. Now the actual locking code uncoditionally promotes lock->context to an unsigned int. Closer inspection of the userspace reveals that the drm lock context is defined as an unsigned int (at least on linux). I suspect we just have a strange case of signedness confusion going on. Tested on my i815, doesn't seem to break anything. Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c index 521152041691..32039553e172 100644 --- a/drivers/gpu/drm/drm_lock.c +++ b/drivers/gpu/drm/drm_lock.c @@ -70,10 +70,6 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv) lock->context, task_pid_nr(current), master->lock.hw_lock->lock, lock->flags); - if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)) - if (lock->context < 0) - return -EINVAL; - add_wait_queue(&master->lock.lock_queue, &entry); spin_lock_bh(&master->lock.spinlock); master->lock.user_waiters++;